Cisco's SDN controller has a security hole

Cisco has issued software to fix a vulnerability in its SDN controller than allows infiltrators to access the system as root users, with access to root commands.

Access to root commands would enable an attacker to access all commands and files on the controller. With that access, the attacker can then modify the system in any way desired, including granting and revoking access permissions for other users, including root users.

A vulnerability in the cluster management configuration of Cisco’s Application Policy Infrastructure Controller (APIC) and Nexus 9000 switch in Application Centric Infrastructure (ACI) mode could allow an authenticated, remote attacker to access the APIC as the root user, according to a recently issued Cisco security advisory. The vulnerability is due to improper implementation of access controls in the APIC filesystem, the advisory states.